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<h1><a name="SQL-COMMIT"></a>COMMIT</h1>
<div class="REFNAMEDIV"><a name="AEN45965"></a><h2>名称</h2>COMMIT&nbsp;--&nbsp;提交当前事务</div>
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<div class="REFSYNOPSISDIV"><a name="AEN45970"></a><h2>语法</h2>
<pre class="SYNOPSIS">COMMIT [ WORK | TRANSACTION ]</pre>
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<div class="REFSECT1"><a name="AEN45972"></a><h2>描述</h2>
<p><tt class="COMMAND">COMMIT</tt> 提交当前事务。所有事务的更改都将为其它事务可见，而且保证当崩溃发生时的可持续性。</p>
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<div class="REFSECT1"><a name="AEN45976"></a><h2>参数</h2>
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<dt><tt class="LITERAL">WORK</tt><br><tt class="LITERAL">TRANSACTION</tt></dt>
<dd><p>可选关键字，没有任何作用。</p></dd>
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<div class="REFSECT1"><a name="AEN45986"></a><h2>注意</h2>
<p>使用 <a href="sql-rollback.html"><i>ROLLBACK</i></a> 语句退出事务。</p>
<p>在一个事务外部发出 <tt class="COMMAND">COMMIT</tt> 不会有问题，但是将产生一个警告信息。</p>
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<div class="REFSECT1"><a name="AEN45992"></a><h2>例子</h2>
<p>提交当前事务以让所有变更永久化：</p>
<pre class="PROGRAMLISTING">COMMIT;</pre>
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<div class="REFSECT1"><a name="AEN45996"></a><h2>兼容性</h2>
<p>SQL 标准只声明了 <tt class="LITERAL">COMMIT</tt> 和 <tt class="LITERAL">COMMIT WORK</tt> 两种形式。否则完全兼容。</p>
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<div class="REFSECT1"><a name="AEN46001"></a><h2>又见</h2><a href="sql-begin.html"><i>BEGIN</i></a>, <a href="sql-rollback.html"><i>ROLLBACK</i></a></div>
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